Grinding and polishing machine.



R. OCHSGHIM.

GRINDING AND POLISHING MACHINE.

APPLICATION FILED MAR. 7, 1913.

1,088,922. Patented Mar. 3, 1914.

fig-:Tin

R. OCHSCHIM.

GRINDING AND POLISHING MACHINE.

AIPLICATION FILED MAR. 7, 1913.

Patented 3, 1914.

6 SHEETS-SHEET Z.

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R. OCHSCHIM. GRINDING AND PoLsHING MACHINE.

APPLICATION FILED MAR. 7, 1913.

Patented Mar. 3, 1914.

1,088,922; E BT R. OCHSGHIM.

GRINDING AND POLISHING MACHINE. APPLICATION Plum 111,111.7, 1913.

SHEETS-SHEET 1.

u R. 0'GHsoHIM. GRINDING AND POLISHING MACHINEx APPLICATION FILED MAR. 7, 1013.

Patented Mar.3,1914.

s SHEETS-SHEET 5I 2X/z wiens@ gd @mxl joined togetbei' by two mils n, on which inns e carriage 0 .having four wheels o beth above and below scid rails (Figs. d 5). The bearings of the Wheels o aire venti cally displaceable in the frame of the cai ringe and can-be soxedly adjusted by 'screws that the carriage o is exactly piieinaticel y guided on the rails n. Journnlod in the carriage o is a bevel-geni' (j whose key g venters' into the groove of the shaft b und can therefore be readily longitudinally displaced with the carriege, but is fof 'hated by the shaft Z) when the lzittei` is' romated. T he bevelgear gniesheswith e coi` responding bevelgeane on the spindle i" vertically joninaled in tliefreine oi? the een riego' 0i The spindle e" carries nt'iis 'lower end e pinion c and e cienk s, which has c .gioovcd guide for a sliding block t, which con be radially adjusted in the scid guidey e; in the crank s, and held by ineens screw i, so that the crcnkgiin t, which h'es e spheiica-lV end n, can obtain various effec@ tive lengths ofcraniz. Mounted on the end n, of the crank-pin is the grinding oi' polish ing head o, which ceiries detechebie longed holder o for receiving the grinding oi polishing pad, the letter not being shown.

' Close to the spindle fr is auxiliary spin die w which carries at its lower end e pinion whcving the semenumber of teeth es the pinion 3 and being ioteted et cquel speed therewith by means of en intermedi nte geen Further, the lower'` end of the shaft fw carries' :i crank y, likewise having a guide foi" ercdielly displncecbie slide 1;5 which is adjustable confoinicbiy with the slide of the crank s and can be' iixed by ineens ol? e screw z". The slide y hes c cinnlopin s which enters into e, projection m on the head e.

llhcn the shaft o iotaies, both the ci'ziniss and gf rotate while icnicining parallel to each other', and diive the grinding oi' poi isbino' heed o Without preventingit from tiiltir about the crank-pin u. .Further isstened to the framework oi" the carriage o e. sleeve l2 having c female thi'ed enn gagging withilie screwed spindle c, whereby the carriage o andthe grinding ci* 'polish- 1? hoed Jrl'ieieon are pi'opelied over the workpiece in one direction or the other nccoiding iio the direction of .the rotation of the spindle `c. `When the belt-plilley kf is also driven the heed lv is also mpidiy driven tonndiro. The work-,tebleV 13 is slideble in guides 14 transversely of the direction ofl motion of the head o and con also be raised Gij end lowered by known devices in order to piress i' against the hond with suitably light oi heavy pressure according to i'c qniie lents. ln 'l'he embodiment the freine i5 (Fiom 3) is guided vertically in the end Wells :it i6 und rests on the nntiiiriction-rolll ers l? et the ends of two-@Ended levers '18 :51 een which are ifnlcrinncd et 19 in the front and neer frames m, m'. The :idJacent ends ci the levers 18 are traversed by c rod 520' (Fig. `2%), whose ends are guided verticallyA 1n the` frames m, m. @ne end -ofthis 'rod carries c sloizted rack 21 which is guided in the fiume m. Meshing with this rock is epinion f2.2 one small shaft Q3 joui'naled in the ironie m vand carrying at its outer end a hand-Wheel 524. The inside eimsrof the le-4 vers 1.8 'carry weights 25 which more than 'conntetbelence the Weight of the Work-table 13, 'Wheeby they always tend to nieve the table upward with n slight pressure 1n order' es much es possible to assist Athe Woiikmzin tending the' machine. The table 13 can therefore be moved up :indd-own loy the hendwheel 24 es desired.

i cieiinri. in e gi'inding and polishing machine the eliemc'er described, the combination of :i freine, e vertical .crank mounted therein, e grinding or polishing heed connected to seid crank by a hellend-socket joint; mee-ns for preventing scid head fijom rotating; about the vertical exis of seid ballftnd-socliet joint While' allowing itv tooscillate about an horizontal exis thereof means y Afor rotating said crank, and `means v for slowly 'moving the axis ci? seidcrank horizontally `end means for imparting to .the ci'enl: n rapid horizontal vreciprocctorj movement, 4 l

2i. in e grinding and olis-hingmechir ci.' the cherecteif described) they combinatie-r. of e freine, two' verticai parallel cranks molinted therein, e grinding or polishing heed connected to one crank by e bell-andsocket joint and only vertically slidably con`y nectcd i-vithizhe other'ocrenli, means-foi' rototing seid cranks at equal speeds, and means for slowly moving the mies, of smid cil-:inks horisonieliy and ineens for .importing to the omni?. e, eapid horizontel reciprccatoiy niov'einento. in c grinding and polishingymechine of ihe cheractei" described, the combination ci e fname, c'verticul crank mounted therein, e grinding oinolishingwhecd connectedv to seid crenl byn balland-soclietv joint, ineens' for rotating said crank, and `ineens for slowly moving the exis of seid crank Alioiizfiontelly, and .means for importing to the crank e rapid horizonte' .i'eciprocatory movement. i i.

d, 'in e gi'inding undeolislung machine n v ci' the character describ l of e iframe, e vermoed crank mounted therethe combination in e giinding or polishing head connected to for preventing .seid .heed from rotating about the 'vertical axis of scid. bell-:111111 socket joint while allowing it to oscillete` Lemons:

slowly moving the axis of said crank hori zontnlly; a horizontal feed-shaft operatively connected with said crank and `mounted rotntably and, axially displaeeably 'in said iframe, and means for longitudinally 1'eoipr'oeoting Said feed-shaft.

5. In n grinding und polishingmnchine of the character described, the combination oi' 'n 4fromm, n vertical crunk mounted there# in, n. grinding or polishing head connected menne" for preventing said head from rotut-v lng about the'verticnl axis; o said` ball-andzontallyga horizontal feed-shuft operatively connected with said crank and mounted xjotatably and axially displncenbly in said frame, and means tor longitudinally reciprocating said feed-shaft; 4nnjluxiliory shaft gournnledin the frame and having right and eft handed threads'nlch cross und join at their ends, two stops fast on said eedlslmft, and a block engnglng said threads and embracing said feed-shaft between said stops.

In testimony whereof, I affix my signature in the presence of two witnesses'.

RUDOLF O CHSCHIM. lWitnesses WOLDEMAR HAUPT, HENRY HAsvnn. 

